CENTRA
centra-ist.bsky.social
CENTRA
@centra-ist.bsky.social
Center for Astrophysics and Gravitation Research Unit of IST Lisbon, Portugal.

https://linktr.ee/CENTRA_ist
🌌 10 years detecting gravitational waves 🌌

On Sept 14, we marked the 10th anniversary of GW150914 with events in Lisbon, Aveiro & Porto. The celebration included a public lecture by Prof. Vítor Cardoso (link below).

🔗 www.youtube.com/watch?v=s5dg...

#GravitationalWaves
September 16, 2025 at 8:32 AM
🌌 Mini-Course on Hawking Radiation 🌌

Join us @istecnico.bsky.social for a 2-part hands-on course with Prof. Jeff Steinhauer - an expert on analogue gravity!

📅 15/09 (16:30) & 18/09 (10:30)
📍 Rooms V0.06 & V1.26

🔗 fisica.tecnico.ulisboa.pt/en/ist-physi...

#Physics #CENTRA #HawkingRadiation
September 5, 2025 at 5:13 PM
🌌 CENTRA Outreach Activity 🌌

Sept 14 marks 10 years since the 1st detection of Gravitational Waves @ligo.org!

Join us at Pavilhão do Conhecimento in Lisbon for demos & a public talk by Prof. Vítor Cardoso. Events also in Aveiro & Porto.

🔗 www.esero.pt/noticias-ese...
September 3, 2025 at 4:30 PM
Reposted by CENTRA
Are black holes fuzzy or bald? This question is intimately connected with the greatest puzzle in modern physics: How can general relativity be merged with quantum theory?
Astrophysicists Find No ‘Hair’ on Black Holes | Quanta Magazine
According to Einstein’s theory of gravity, black holes have only a small handful of distinguishing characteristics. Quantum theory implies they may have more. Now an experimental search finds that…
www.quantamagazine.org
August 28, 2025 at 8:04 PM
Reposted by CENTRA
Gravitational waves, like those recorded at the Virgo interferometer near Pisa, Italy, are helping scientists test if individual black holes have unique qualities.
www.quantamagazine.org/astrophysici...
August 29, 2025 at 8:04 PM
🌌 Welcome GW231123 🌌
The most massive black hole binary ever detected by @ligo.org / Virgo / KAGRA! 💥

The remnant #BlackHole has approximately 260 solar masses! CENTRA researchers are studying the origin of such an extreme event! Stay tuned!

🔗 arxiv.org/abs/2507.08219
August 5, 2025 at 2:31 PM
🌌 Black hole in a room 🌌

New work by Oshita, Berti & Cardoso shows how black holes "ring" like instruments in a room—echoes and all. Their study reveals how destabilized modes improve ringdown models. Now in PRL @apsphysics.bsky.social!

🔗 journals.aps.org/prl/abstract...

#BlackHoles #Physics
August 4, 2025 at 11:11 AM
🌌 Gonçalo at ESO 🌌

MSc student Gonçalo Martins (CENTRA/COSTAR) gave a seminar at @ESO in Chile, on how galaxy and SN properties affect measurements of the Hubble constant. Congrats to Gonçalo and their supervisor Ana Mourão!

#CENTRA #Cosmology #HubbleTension #Astrophysics
July 30, 2025 at 12:07 PM
🌌 CENTRA @ GR24/Amaldi16 in Glasgow 🌌

Our researchers made a strong mark at the world’s top relativity & gravitational waves conference, with many impactful talks.

#GR24 #Amaldi16 #Physics #Science #Scotland
July 19, 2025 at 2:35 PM
🌌 Técnico Day 2025 🌌

@istecnico.bsky.social celebrated excellence this May 23!
CENTRA’s Ana Mourão, João Álvares & Valentin Boyanov were honoured for their outstanding evaluations as lecturers. 👏

#TecnicoDay #Physics

📸 Ana Mourão receiving the diploma

🔗 tecnico.ulisboa.pt/en/news/camp...
July 1, 2025 at 3:17 PM
🎉 Congratulations Vítor 🎉

CENTRA group leader Vítor Cardoso was honoured by his hometown of Póvoa de Varzim for his outstanding contributions to our understanding of black holes, gravitational waves, and the cosmos.

#Science #BlackHoles #Astrophysics
June 23, 2025 at 10:53 AM
🌌 All you wanted to know about black hole spectroscopy 🌌

CENTRA researchers played a central role in a new review of what we know about black hole spectroscopy—the analysis of the sound of black holes!

#BlackHoles #Astrophysics #Science #GravitationalWaves #Physics

🔗 arxiv.org/abs/2505.23895
June 18, 2025 at 8:49 AM
🌌 Environmental dynamics in EMRIs 🌌

A new @physrevlett.bsky.social @apsphysics.bsky.social study from CENTRA researchers shows how matter around black holes responds to inspiralling objects—an important result for LISA @esa.int science!

#Astrophysics #BlackHoles

🔗 journals.aps.org/prl/abstract...
Environmental Effects in Extreme-Mass-Ratio Inspirals: Perturbations to the Environment in Kerr Spacetimes
Future gravitational wave observatories open a unique avenue to study the environments surrounding black holes. Intermediate or extreme mass ratio inspirals will spend thousands to millions of cycles ...
journals.aps.org
June 16, 2025 at 12:21 PM
🌌 Cosmic Waltz 🌌

New work by CENTRA's Zhen Zhong & Vitor Cardoso @istecnico.bsky.social shows how stars "dance" to ripples in spacetime! A novel method may let us see gravitational waves around supermassive black holes.

#Science #BlackHoles #Physics

🔗 journals.aps.org/prl/abstract...
Dynamical Lensing Tomography of Black Hole Ringdowns
Strong gravitational lensing occurs when photons pass through the vicinity of a black hole. We investigate this phenomenon in the context of a gravitational-wave event, specifically when a black hole ...
journals.aps.org
June 13, 2025 at 11:41 AM
🌌 CENTRA Research News! 🌌

Vitor Cardoso and Adrien Kuntz @istecnico.bsky.social and collaborators explore nonlinear effects in black hole ringdowns. Their findings in PRD @apsphysics.bsky.social confirm: perturbation theory holds strong, even at nonlinear order!

🔗 journals.aps.org/prd/abstract...
May 20, 2025 at 12:55 PM
🌌 CENTRA Research News! 🌌

Giorgio Laverda @istecnico.bsky.social co-authored a new paper in #JHEP @springernature.com on how late-time phase transitions could link neutrino masses and dark matter— reviving previously excluded scenarios.

#physics #cosmology

🔗 link.springer.com/article/10.1...
May 19, 2025 at 9:39 AM
🌌 CENTRA Research News! 🌌

Miguel Duarte, Edgar Gasperín & David Hilditch @istecnico have developed a new asymptotic method to better understand gravitational waves near null infinity.

🔗 arxiv.org/abs/2503.17036

#Astrophysics #physics #BlackHoles #cosmology #Science
May 14, 2025 at 12:00 PM
🌌 CENTRA Outreach Event! 🌌

Ana Mourão joined a vibrant roundtable on The Future of Space during @istecnico Jornadas Espaciais, discussing supernovae, space debris, sustainability, and Portugal’s space scientific landscape! 🚀✨🔭

#Science #physics #SpaceScience #Outreach
May 7, 2025 at 9:05 AM
🌌 CENTRA in Wolfram Community! 🌌

GRIT PhD student Zhen Zhong, Prof. Vítor Cardoso & collaborators developed a forward ray tracing method to map light from hotspots near black holes—now featured in @WolframResearch Staff Picks!

📎 Wolfram: community.wolfram.com/groups/-/m/t...

#Science
May 1, 2025 at 8:20 AM
🌌 Strong gravity across India! 🌌

Vítor Cardoso visited colleagues in Chennai, Bangalore & Pune, delivering the Chandrasekhar Lecture, a colloquium at IUCAA, and speaking at the ICTS-TIFR School on black holes & strong gravity!

#BlackHoles #Astrophysics #Science
April 14, 2025 at 8:50 AM
🌌 On the topic of eclipses 🌌

On March 29th, a partial solar eclipse was visible across Portugal — and CENTRA researchers were ready with their lenses! 🌒📸

These stunning photographs were captured by Prof. Ana Mourão and João Duarte, showcasing nature's cosmic choreography.
April 8, 2025 at 9:34 AM
🌌 CENTRA Outreach Event! 🌌

CENTRA recently joined the Técnico Open Day with our exhibit "Lights and Shadows" ☀️🌑🌍 — a journey through the Sun–Earth–Moon system and the science behind eclipses!

🔗 tecnico.ulisboa.pt/en/news/camp...

#ScienceOutreach #Eclipses #Astronomy #STEM
April 8, 2025 at 9:32 AM
🌌 CENTRA Research News! 🌌

Marco Melis, a visiting PhD student at CENTRA @istecnico.bsky.social co-authored a new study in #PRD @apsphysics.bsky.social on nonlinear spectroscopy of black holes in Einstein-Maxwell-scalar theory.

🔗 journals.aps.org/prd/abstract...

#Astrophysics #Physics
April 2, 2025 at 1:35 PM
🌌 CENTRA Research News! 🌌

Chen Yuan & Vitor Cardoso from CENTRA @istecnico.bsky.social explore how turbulence in accretion disks may generate gravitational waves! Study in
#PRD @apsphysics.bsky.social.

#Astrophysics #Physics #Science #GravitationalWaves

🔗 journals.aps.org/prd/abstract...
March 24, 2025 at 1:23 PM
🌌 CENTRA Research News! 🌌

Giorgio Laverda @istecnico co-authored a new study in #JCAP @ioppublishing.bsky.social on gravitational waves from early-universe phase transitions.

#Astrophysics #physics #cosmology #gravitationalwaves #Science

🔗 iopscience.iop.org/article/10.1...
March 21, 2025 at 12:05 PM